Arithmetic Logic Functions | MC14520B

双路 BCD 正数计数器

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MC14518B 双路 BCD 计数器和 MC14520B 双路二进制计数器采用一个单片结构，使用 MOS P 沟道和 N 沟道增强型器件进行构造。每个器件都由两个相同、独立、内部同步的 4 级计数器组成。计数器级是 D 型触发器，具有可互换的时钟和启用线路，用于在级联多个级时根据需要在正向或负向转换上递增。每个计数器都可以通过在重置线路上应用高电平来清除。此外，MC14518B 将在两个时钟周期内计算出所有未定义的状态。这些互补 MOS 正数计数器主要用于需要低功耗和/或高抗扰性的多级同步或纹波计数应用。

  • Diode Protection on All Inputs
  • Supply Voltage Range = 3.0 Vdc to 18 Vdc
  • Internally Synchronous for High Internal and External Speeds
  • Logic Edge-Clocked Design Incremented on Positive Transition of Clock or Negative Transition on Enable
  • Capable of Driving Two Low-power TTL Loads or One Low-power Schottky TTL Load Over the Rated Temperature Range

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MC14520BDWG

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Pb

A

H

P

SOIC-16W

751G-03

3

260

TUBE

47

N

Counter

3

18

230

0.5

2.25

Price N/A

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MC14520BDWR2G

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CAD Model

Pb

A

H

P

SOIC-16W

751G-03

3

260

REEL

1000

N

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3

18

230

0.5

2.25

$0.5003

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可靠性数据

Die Related Summary Data

Device: MC14520BDWG

Equivalent to wafer fab process: CMOS STD

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等效器件小时

平均故障间隔时间/平均无故障时间（按小时计算）

FITS

CMOS STD

3

3597164517

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Data is based on the following assumptions.

Note: The temperature and confidence level may be adjusted to your requirements.

Disclaimer: A reliability FIT rate calculated using this tool shall not be used for any functional safety purpose. In case a raw FIT rate needs to be estimated for a component which is targeted to be used in a safety critical application (i.e. compliant to ISO 26262 standard) it should be calculated according to generic safety standards (IEC62380, IEC61709, SN29500, FIDES, etc.)

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